A formal authorization regulators grant a <a href="https://crypto-bible.com/en/glossary/defi-basics/stablecoin/" target="_blank" rel="noopener">Stablecoin</a> issuer, certifying the company has passed review and committed to specific rules (reserve composition, periodic disclosure, redemption protections) before it can legally issue a stablecoin to the public — not having a license doesn't automatically mean a company is a scam, but it does mean users lose the layer of protection that comes from regulatory vetting.

A temporary exemption window granted by regulators, letting issuers who haven't yet fully met new requirements keep operating legally while they complete the compliance process — rather than being deemed in violation the instant a rule takes effect.

When the U.S. Treasury's Office of Foreign Assets Control (OFAC) adds an address to its sanctions list, issuers like Tether or Circle can freeze that address's <a href="https://crypto-bible.com/en/glossary/defi-basics/stablecoin/" target="_blank" rel="noopener">Stablecoin</a> holdings directly at the <a href="/en/glossary/blockchain-fundamentals/smart-contract/">Smart Contract</a> level, preventing transfer or redemption — meaning the stablecoin you hold is fundamentally a form of "permissioned money" whose usability an issuer can revoke at any time, not a fully uncontrolled asset.

When a stablecoin transfer exceeds a set threshold, exchanges and wallet providers must attach sender and recipient identity information that "travels" with the transfer to the counterparty platform, enabling law enforcement to trace the flow of funds — the threshold and enforcement scope vary by jurisdiction.